Abstract
Mechanism of gyro-finishing was investigated with a drum of 400mm diameter and less than 300r.p.m., in which cylinder-shaped steel, brass, and aluminium alloy were polished.
The result is as follows:
(1) The smaller the specific gravity of the media, the more uniform is the shape of the mass.
(2) The best polishing effect is obtained when 300c.c. of water is added to 1, 000c.c. of media.
(3) The lower the hardness of the metal is, the sooner is the polishing speed.
(4) Special space of the work is abrased more heavily by unbalance of the mass and side pressure of the drum wall.
(5) The polishing is done by the friction between media and the work, but not by collision of media with the work.
